Interpretation Act 1987 No 15
Current version for 14 May 2020 to date (accessed 15 July 2020 at 19:58)
Part 3 Section 24
24   Time of commencement of Acts and statutory rules
If an Act or statutory rule provides that it shall commence, or be deemed to have commenced, on a particular day, it shall commence, or be deemed to have commenced, at the beginning of that day.